The quotes I've gotten to have twin wall polycarbonate panels shipped are really high. The quote from Greenhousemegastore.com was $100 crate fee and $200+ for shipping. I'm building a small greenhouse and only need 135 sq ft for the roof (the walls will be salvaged glass) so that would add $2.20/sq ft. and bring it to about $5/sq ft with accessories and tax. I can get polycarbonate locally and not pay shipping but haven't found any that has the anti-drip treatment for condensation and I really want that. At that price I'm thinking of going with the corrugated polycarbonate on the outside and a layer of anti-drip poly film on the inside. Is there any good reason not to do that?
And does anyone know any other options or suppliers where I might not have to pay such high shipping costs?
We use sheets of Polycarbonate all they time for building robots for FIRST Robotics. We get them from a local plastic fabricating company that makes signs, displays and other special orders. Check and see if any are in the area. They may have what you are looking for or could order it for you.
Big light stuff is expensive to ship. You could get 10 times as much and pay the same shipping.
So you need to find someone nearby that needs it, too, and you can split the cost.
Or drive to the warehouse. You can drive a long way on $100 of gas.
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